Hi,
I'm starting on a project to build LCRs, I've fell in love with the QSC SC 2150 horn. However I want to DIY it with different drivers.
So idea is to build a ported box for the LF section and use the QSC 2150 horn.
Speaker choices:
Low Freq:
Use only 1 18" woofer
Celestion FTR18-4080F
404 Not Found
I want to create a ported box of ~200 liters so it's flat until 50hz or so, I will cross with a sub for real lows
This deviates from the QSC 2150 usage of 2 15" woofers.
Use up to 500hz
Mid:
Celestion CF0617M
Celestion CF0617M - Cast Chassis Mid-Range Driver
Use from 500hz to 2khz
The QSC 2150 uses the celestion TF0615 and it's like a diff of 5db lower than my choice of the newer CF0617M
High:
Selenium D220ti 8ohm with the eminence adapter so I can get it on the horn
From 2khz to end. From the specs it appears to be a great driver with flat range.
The actual design of the real QSC SC 2150 is crossed at 500/2.2k using different drivers and the LF portion uses 2 15".
For crossovers, I see parts express has 500hz and 2k lpf/hpf filters for 8ohm. They're 2nd order. I was thinking of using these. And use an lpad for the tweeter to bring it down to level match
Should I expect surprises by using those drivers in the 2150 mid/high horn?
Would I be close enough with this design and crossover? What risks do I face? Is there anything obvious that is terrible about this? Am I out to lunch?
Thanks a bunch for any feedback.
I'm starting on a project to build LCRs, I've fell in love with the QSC SC 2150 horn. However I want to DIY it with different drivers.
So idea is to build a ported box for the LF section and use the QSC 2150 horn.
Speaker choices:
Low Freq:
Use only 1 18" woofer
Celestion FTR18-4080F
404 Not Found
I want to create a ported box of ~200 liters so it's flat until 50hz or so, I will cross with a sub for real lows
This deviates from the QSC 2150 usage of 2 15" woofers.
Use up to 500hz
Mid:
Celestion CF0617M
Celestion CF0617M - Cast Chassis Mid-Range Driver
Use from 500hz to 2khz
The QSC 2150 uses the celestion TF0615 and it's like a diff of 5db lower than my choice of the newer CF0617M
High:
Selenium D220ti 8ohm with the eminence adapter so I can get it on the horn
From 2khz to end. From the specs it appears to be a great driver with flat range.
The actual design of the real QSC SC 2150 is crossed at 500/2.2k using different drivers and the LF portion uses 2 15".
For crossovers, I see parts express has 500hz and 2k lpf/hpf filters for 8ohm. They're 2nd order. I was thinking of using these. And use an lpad for the tweeter to bring it down to level match
Should I expect surprises by using those drivers in the 2150 mid/high horn?
Would I be close enough with this design and crossover? What risks do I face? Is there anything obvious that is terrible about this? Am I out to lunch?
Thanks a bunch for any feedback.
Nice project!
I heard the Selenium D220ti and did not like its metallic sound. The DE250 I liked more. Now I use a Sica and for low volume as I listen I like it even more than the B&C. I guess you will have to try some CDs before going with one model.
Do you know where to buy the horn only?
I heard the Selenium D220ti and did not like its metallic sound. The DE250 I liked more. Now I use a Sica and for low volume as I listen I like it even more than the B&C. I guess you will have to try some CDs before going with one model.
Do you know where to buy the horn only?
I'm planning to buy the waveguide directly from the QSC website. It says they are currently out of stock but I put myself on the wait-list. Thanks for the CD suggestions, I'll take a deeper look. My aims are high sensitivity and flat response as possible because I'm using it for 100% HT. I prefer the receiver to do a rolloff/etc of a flat speaker.